It encloses a well roughly two metres across, dedicated to St. Kieran, and it has the particular quality of things that were once important and are no longer tended: present but withdrawn, remembered in name more than in practice.

Holy wells are among the most persistently used sacred sites in Ireland, often predating Christianity but absorbed into it through dedication to local saints. This one takes its name from St. Kieran, the same saint commemorated in the nearby church and enclosure at Kilkeeran. The well's enclosure, a circular dry-stone wall measuring two and a half metres across in both directions, is a modest but deliberate structure, built to mark the water as set apart. Its proximity to the ecclesiastical complex suggests a landscape that was once organised around these points of gathering, where the well, the church, and the enclosure formed a coherent sacred precinct rather than isolated features scattered across a parish.